Can we do tack weld by pipe fitters?

[mkn]

Can we do tack weld by pipe fitters according to ASME 31.3?

[james gerald]

Yes Tack welding can be done by Pipe Fitters provided those tack welds are removed and donot form a part of completed weld joint.

Else Pipe Fitters can be Qualified inaccordance with ASME Sec.IX for welder qualification.

 

Thanks & Regards

J.Gerald Jayakumar
0091-9344954677

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From: mkn <mkna...@gmail.com>
To: Materials & Welding <material...@googlegroups.com>
Sent: Tuesday, February 14, 2012 2:33 AM
Subject: [MW:13666] Can we do tack weld by pipe fitters?

Can we do tack weld by pipe fitters according to ASME 31.3?

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[syed moinul hasan]

No you cannt tack weld, unless the welder is qualifies.

Moin

On 14 February 2012 02:33, mkn <mkna...@gmail.com> wrote:

Can we do tack weld by pipe fitters according to ASME 31.3?

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[rinshad abdul rahman]

We cannot use the unqualified welders to do tack welds,please give the training to pipe fitters and qualify them as per Sec IX( at least in flat position ) .

All the welding should be done by qualified welders it includes the tack welding also .

Rinshad 

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Thanks and Regards................?

Rinshad abdul rahiman Q.C.E OCEAN RUBBER FACTORY L.L.C-ENGG.DIV Al-ghail industrial park,Ras al khaima Tel: +971507103778 q...@oceanrubber.com

[Karthik]

Hi,

As per B31.3 - K328.5.1 (c) - Tack welds Shall be made by a Qualified Welder or Welding Operator. According to that, you cannot use your fitters for tack welds unless otherwise they qualified.

 

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

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From: james gerald <gerr...@yahoo.com>
To: "material...@googlegroups.com" <material...@googlegroups.com>
Sent: Tuesday, February 14, 2012 11:54 AM
Subject: Re: [MW:13669] Can we do tack weld by pipe fitters?

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[Vino Varghese]

 

Please make sure to check the Client Specification aslo as most of the Specification instruct " TACK WELD shall be done by QUALIFIED WELDER...

 

Regards

Vino 

 

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[w.ajipamu...@gmail.com]

Yes, can do tack weld by your fitter BUT you must make sure the tack weld shall be removed during welding by qualified welder.

WAP

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From: Vino Varghese <vinopv...@gmail.com>

Sender: material...@googlegroups.com

Date: Tue, 14 Feb 2012 14:27:41 +0400

To: <material...@googlegroups.com>

ReplyTo: material...@googlegroups.com

Subject: Re: [MW:13681] Can we do tack weld by pipe fitters?

[Naresh Kumar]

If the tack welding is final part of the weld, it should be done by a qualified welder. Otherwise no need.

 

Regards,

Nareshkumar subramanian

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From: Vino Varghese <vinopv...@gmail.com>

To: material...@googlegroups.com
Sent: Tuesday, February 14, 2012 3:57 PM
Subject: Re: [MW:13681] Can we do tack weld by pipe fitters?

[sandy]

Tack welding must be done by the qualified person. Either its going to
be the part of the weld or its going to be removed before welding.
If the final weld include the tack, then the test piece during
qualification can have same condition practically, thats actually
means by welding qualification.
The qualification can be done as per ASME sec 9 or EN-287-1

Regards
Sandeep Kumar

[manpreet]

Hi,

Qualification is required (see applicable design code).

e.g. ASME VIII/1, UW-31 CUTTING, FITTING, AND ALIGNMENT
….
(c) …..Tack welds, whether removed or left in place, shall be made using a fillet weld or butt
weld procedure qualified in accordance with Section IX. …

Regards
Manpreet Singh




On Wed, 15 Feb 2012 09:04:56 +0530 wrote

>Can we do tack weld by pipe fitters according to ASME 31.3?

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code/standard/contract documents.

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[Doni Afrizal]

Dear all,

The question is " Can we do tack weld by pipe fitters according to ASME 31.3? "

so, we should go to ASME B31.3.

The Code said on part 328.5.1 (c) Tack welds shall be made by a qualified welder or welding operator.

Regards,

Doni Afrizal

IdWI, ASNT NDT Level 2 (MT,PT,RI)

[tugrulhan özdemir]

Yes you are rigth we need to follow the indicated standart. Because for example  if you check  in API 653 it says , 

10.4.2.7

Tack welds used in the assembly of vertical joints of tank shells shall be removed and shall not remain in

the finished joint when the joints are welded manually. When such joints are welded by the submerged-arc process,

the tack welds shall be thoroughly cleaned of all welding slag but need not be removed provided that they are sound

and are thoroughly fused into the subsequently applied weld beads. Tack welds shall be made using a fillet-weld or

butt-weld procedure qualified in accordance with Section IX of the ASME Code. Tack welds to be left in place shall be

made by qualified welders.

 

It says if your tack will not be include in weld metal ,eg. manuel welding method, you can use unqualified welder

 

 

2012/2/16 Doni Afrizal <doni.a...@gmail.com>

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Tuğrulhan ÖZDEMİR

Metalürji & Malzeme Müh. (Y.T.U.)

U.Kaynak Mühendisi (I.W.E.)

[Suresh]

Hii 

.you can NOT proceed the  tack welds with pipe fitters ...you have to go for Qualified welders ONLY ...

Suresh

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Thanks  & Best Regards,

Suresh

Mobile No: 974 -  5 5 4 3 1 7 8 8  /  7 7 1 3 4 5 9 0 . ( Qatar )

 

                  91 - 92 92 905 905 ( India )

[tugrulhan özdemir]

Yes you are rigth we need to follow the indicated standart. Because for example  if you check  in API 653 it says ,  10.4.2.7

Tack welds used in the assembly of vertical joints of tank shells shall be removed and shall not remain in
the finished joint when the joints are welded manually. When such joints are welded by the submerged-arc process,
the tack welds shall be thoroughly cleaned of all welding slag but need not be removed provided that they are sound
and are thoroughly fused into the subsequently applied weld beads. Tack welds shall be made using a fillet-weld or
butt-weld procedure qualified in accordance with Section IX of the ASME Code. Tack welds to be left in place shall be
made by qualified welders.
 
It says if your tack will not be include in weld metal ,eg. manuel welding method, you can use unqualified welder

2012/2/16 Doni Afrizal <doni.a...@gmail.com>

Dear all,